Glutamate receptors are involved in mitigating effects of amino acids on seed germination of Arabidopsis thaliana under salt stress

doi:10.1016/j.envexpbot.2016.05.004

	Glutamate receptors are involved in mitigating effects of amino acids on seed germination of Arabidopsis thaliana under salt stress
	Cheng, Yao 1; Tian, Qiuying ; Zhang, Wen-Hao
	2016
发表期刊	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
ISSN	0098-8472
卷号	130 页码:68-78
摘要	Seed germination is an elaborate process during life cycle and regulated by numerous intrinsic and environmental cues. The role of amino acids in seed germination under salt stress has been reported, however the underlying mechanisms by which amino acids mitigate salt stress-induced seed germination remain largely elusive. Here, we reported that seed germination of Arabidopsis thaliana wild-type was suppressed by exposure to salt stress, and that the inhibition was markedly alleviated by exogenous application of those amino acids including Gly, Cys, Ser and Met. Calcium channel blocker Le(3+) suppressed the mitigating effect of those amino acids on seed germination under salt stress. We further demonstrated that germination of wild-type seeds was suppressed by the glutamate receptor (GLR) antagonist 6,7-dinitriquinoxaline-2,3-dinoe (DNQX) under salt stress and the alleviative effects of amino acid on seed germination under salt stress were suppressed by DNQX. In addition, mutation of Glade 3 GLRs led to lower seed germination rates of atglr3.4 and atglr3.7 mutants than those of wild-type seeds when exposed to NaCl and the mitigating effects of amino acids on seed germination rates of atglr3.4 and atglr3.7 were less effective than those of wild-type seeds. Moreover, seed germination of atglr3.4-1, atglr3.4-2 and atglr3.7 mutants were less sensitive to CaCl2 and DNQX than wild-type under salt stress. Taken together, these findings highlight the involvement of GLR-dependent Ca2+ influx in alleviation of salt stress-induced inhibition of seed germination by exogenous amino acids. (C) 2016 Elsevier B.V. All rights reserved.
关键词	Amino acids Arabidopsis thaliana atglr3.4 and atglr3.7 Glutamate receptors Salt stress Seed germination
学科领域	Plant Sciences ; Environmental Sciences
DOI	10.1016/j.envexpbot.2016.05.004
收录类别	SCI
语种	英语
WOS关键词	ABSCISIC-ACID ; CALCIUM ; GENES ; ETHYLENE ; DROUGHT ; TOLERANCE ; RESPONSES ; SALINITY ; CHANNELS ; GROWTH
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000381325000007
出版者	PERGAMON-ELSEVIER SCIENCE LTD
文献子类	Article
出版地	OXFORD
EISSN	1873-7307
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31272234]
作者邮箱	whzhang@ibcas.ac.cn
引用统计	被引频次：30[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25142
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Beijing Inst Life Sci, Res Network Global Change Biol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Yao,Tian, Qiuying,Zhang, Wen-Hao. Glutamate receptors are involved in mitigating effects of amino acids on seed germination of Arabidopsis thaliana under salt stress[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2016,130:68-78.
APA	Cheng, Yao,Tian, Qiuying,&Zhang, Wen-Hao.(2016).Glutamate receptors are involved in mitigating effects of amino acids on seed germination of Arabidopsis thaliana under salt stress.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,130,68-78.
MLA	Cheng, Yao,et al."Glutamate receptors are involved in mitigating effects of amino acids on seed germination of Arabidopsis thaliana under salt stress".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 130(2016):68-78.

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